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GeForce GTX 1660 Ti vs Radeon RX 6600 XT

Intro

The GeForce GTX 1660 Ti has a GPU core clock speed of 1500 MHz, and the 6144 MB of GDDR6 RAM runs at 1500 MHz through a 192-bit bus. It also is comprised of 1536 SPUs, 96 Texture Address Units, and 48 ROPs.

Compare all of that to the Radeon RX 6600 XT, which has a clock speed of 1968 MHz and a GDDR6 memory frequency of 2000 MHz. It also uses a 128-bit bus, and uses a 7 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
Radeon RX 6600 XT 160 Watts
Difference: 40 Watts (33%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1660 Ti should perform just a bit faster than the Radeon RX 6600 XT overall. (explain)

GeForce GTX 1660 Ti 294912 MB/sec
Radeon RX 6600 XT 262144 MB/sec
Difference: 32768 (13%)

Texel Rate

The Radeon RX 6600 XT should be quite a bit (approximately 75%) better at AF than the GeForce GTX 1660 Ti. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
GeForce GTX 1660 Ti 144000 Mtexels/sec
Difference: 107904 (75%)

Pixel Rate

The Radeon RX 6600 XT is a lot (more or less 75%) more effective at FSAA than the GeForce GTX 1660 Ti, and will be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
GeForce GTX 1660 Ti 72000 Mpixels/sec
Difference: 53952 (75%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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GeForce GTX 1660 Ti

Amazon.com

Check prices at:

Radeon RX 6600 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 1660 Ti Radeon RX 6600 XT
Manufacturer nVidia AMD
Year February 2019 August 2021
Code Name TU116-400-A1 Navi 23 XT
Memory 6144 MB 8192 MB
Core Speed 1500 MHz 1968 MHz
Memory Speed 1500 GB/s 2000 GB/s
Power (Max TDP) 120 watts 160 watts
Bandwidth 294912 MB/sec 262144 MB/sec
Texel Rate 144000 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 72000 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 1536 2048
Texture Mapping Units 96 128
Render Output Units 48 64
Bus Type GDDR6 GDDR6
Bus Width 192-bit 128-bit
Fab Process 12 nm 7 nm
Transistors 6600 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 1660 Ti

Amazon.com

Check prices at:

Radeon RX 6600 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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